From the main interface in Dropbox Paper you can quickly create new documents. Within a document you can write, change the text formats, add images, quote other users, insert videos, and ultimately, do just about anything you could want to do with a tool like this.
Sharing documents with other users is really easy. Anyone on the team can see all the changes made in real time. Plus you can send messages directly to your coworkers so you don't even have to leave the app to communicate.
Dropbox Paper is an interesting app that can help small groups of colleagues easily work together. Not to mention it has an elegant and minimalist interface.
Requires Android 4.4 or higher